Namespaces in Imports field not imported from:
  ‘GiRaF’ ‘mvtnorm’
  All declared Imports should be used.
Namespaces in Imports field not imported from:
  ‘GiRaF’ ‘mvtnorm’
  All declared Imports should be used.
Namespaces in Imports field not imported from:
  ‘GiRaF’ ‘mvtnorm’
  All declared Imports should be used.
Package required but not available: ‘SingleCellExperiment’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
Installation failed.
See ‘/Volumes/Builds/packages/high-sierra-x86_64/results/4.1/SC.MEB.Rcheck/00install.out’ for details.
Installation failed.
See ‘/Volumes/Builds/packages/high-sierra-x86_64/results/4.0/SC.MEB.Rcheck/00install.out’ for details.